Bundle tie

ABSTRACT

A TIE OF THE TYPE COMPRISING A TOOTHED STRAP HAVING AN APERTURED HEAD AT ONE END, THE OTHER END OF THE STRAP BEING THREADED THROUGH THE HEAD AND LOCKED THEREIN BY A PAWL. THE PRESENT DISCLOSURE RELATES TO IMPROVEMENTS IN THE PAWL TO OBTAIN A MORE RELIABLE LOCKING ACTION ON THE STRAP.

P 1971 R. EBERHARDT 3,6os,

- BUNDLB TIB F11ed jan. 8. 1970 better appreciated by noting that the greater the fofce acting to pI111 the Stfap out of the aperture 3o, the greater the feSiStance. In effect Such feVefSe fofce not only pivotS the pawl clockvvise about ifS baSe into Inofe se cufe engageInent vVith the StfaP teeth bllt tendS to com pfeSS the active faces 4IE and 41f into in1pleTTlented en gagenlent. In the eXanlple the angle at the creSt of a tooth is afc tan While the crest angle of a pawl tooth is one end of said Strap, said head having waHS denning an apefture to paSS the stfap, the interior face of at leaSt one waH being ffat for abutInent by the other Side of the Strap when the strap iS locked and a pawl having a ph Tality of teeth SubstantiaHy of buttreSS forn1 having an acutely angled creSt, deHned in paTt by a face adapted to abut the reSpective ones of the working faceS of the Stfap teeth, Said pawl being carffed on the head by a neck portioI and eXtending into the aperture, the paw being SWingable on Said neck poTtion betWeen Strap cleafing and strap-engaging poSitionS, the creSt angle of the pawl teeth being leSS than the cfeSt angle of the strap teeth whereby, When the strap is aTound the bundlo, paSSed through the apefture and puHed tight and the Teactive fofce of the compreSSed bundIe appHed to the strap, the active face of each pawl tooth iS con1preSSed into face-to-face felation with the feSpective face of a strap tooth,

2. The coIIbination in accordance With caim 1 fuf ther CharactefiZed in that the head inCludeS a ledge to which said necked poftion of the pawl iS joined.

3- In a bundle tie of feSHient, yet genefaHy Shapefe taining n1aterial adapted to be looped upon itSelf and around the bundle in adjuStable, Selflocking relation in cluding a stfap having teeth on one face defined by at leaSt one face nofInal to the longitudinal aXis of the stra Said Stra havin a head at one end having n1eans defining a thfough oPening f() pasSage of the straP and a pawl to engage the strap teeth to lock the tie in em bracing relation vvith the bundle, the in1pfovenent vvhich CofnpriSeS providing the pawl With a plurality of teeth to engage reSpectfve oneS of the stfap teeth each pawl tooth having an edge denned by a sloping face and a face whiCh in the non-engaged position of the teeth, is norn1al to the aXis of the a ertUfe, the edgeS of the pawl teeth lyfng in a plane haVing an acute angle With refeTence to [he aperture aXiS, the acute angle Conffonting the en tranCe to the paSSage, the Said norInal face engaging the norfnal face of the stfap teeth in facetoface abUt nent when the Stfap iS in locked condition, Said paSSage having an inferiof face of leaSt CoextonsiVe vvith the pavV1 teeth for abutITlent by the non-toothed face of the Strap and the diSnnCc between lhe awl edge coSeSf to said paSSage interiof face and Said face being less than the diSance betWeen the foot of the Strap teeth and the un toothed face of the strap, Said pavvl having a pivotal connection With the head adjacent the entTance to the paSSage.

4- The con1bination in aCCordance with clain1 3 wherein the Strap teeth are buttreSS-Shaped, the Working face of the teeth being SubStantiaHy nofnlal to the longitudinal aXiS of the Strap.

References Cifed UNITED STATES PATENTS 3,009 2Z0 11/1961 Fein Z416PB 3,Z14,808 11/196 Litvvin Z416PB 3 368 Z47 Z/1968 ()fban Z416PB 3,484,905 12/1969 EbeThaTdt Z416PB 3,486,201 12/1969 Bourne 2416PB DoNALD A. GRIFFIN, Primar Examiner 

